There are several different types of Bitcoin clients. Hybrid server-assisted clients like Electrum get a lot of their network information from centralized servers, but they also check the server's results using blockchain header data. This is perhaps somewhat more secure than either server-assisted clients or header-only clients.

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You know, pointing your CPU's at LTC, would probably net you a higher income....You are aware, you can mine ANY coin with a CPU, not just YAC....

For LTC is the recent "panic", after a few days it will go back up I think.

BBQcoin seems to have been the most massive profit for CPU miners recently, with Tenebrix and Fairbrix still poised to give as good a payoff too when they eventually come out from "under the radar" like BBQcoin did.

YAC is the first non "copy/paste" coin that's been introduced in a long time, and has some unique ideas. pocopoco really needs to get involved here more though. I agree with Bitcoin Megastore, I believe Yacoin will still be viable a year from now.